Trinamool MP Abhishek Banerjee's wife Rujira Banerjee, who was asked to join the CBI probe in a coal smuggling, said on Monday that she is "unaware of the reason of questioning". She has offered to meet the investigating officers between on Tuesday between 11 AM and 3 PM. The summons come just months before the crucial assembly polls in West Bengal. "Though I am unaware of the the subject matter of the investigation, you may visit my residence as per your convenience between 11 AM and 3 PM tomorrow, i.e. 23 February, 2021," she said in her letter to CBI, delivered on Monday morning.